[Oilpan] Migrate most classes under core/animations to Oilpan heap.

Source/core/css/resolver/StyleResolverState.cpp

Index: Source/core/css/resolver/StyleResolverState.cpp
diff --git a/Source/core/css/resolver/StyleResolverState.cpp b/Source/core/css/resolver/StyleResolverState.cpp
index d883d7cf5ad09cfa353b0324eff7b2f3fb371b5b..5a5f2cc3fc1a1db3b5ff5135bfc4951ab2bf1b15 100644
--- a/Source/core/css/resolver/StyleResolverState.cpp
+++ b/Source/core/css/resolver/StyleResolverState.cpp
@@ -58,14 +58,14 @@ StyleResolverState::~StyleResolverState()
 {
 }
 
-void StyleResolverState::setAnimationUpdate(PassOwnPtrWillBeRawPtr<CSSAnimationUpdate> update)
+void StyleResolverState::setAnimationUpdate(CSSAnimationUpdate* update)
 {
     m_animationUpdate = update;
 }
 
-PassOwnPtrWillBeRawPtr<CSSAnimationUpdate> StyleResolverState::takeAnimationUpdate()
+CSSAnimationUpdate* StyleResolverState::takeAnimationUpdate()
 {
-    return m_animationUpdate.release();
+    return m_animationUpdate;
 }
 
 } // namespace blink